Ambiguous or invalid backslash. This doesn't cause groff a problem.
but it confuses doclifter and may confuse older troff implementations.
Spelling error or typo.
Specify a blind-carbon-copy (BCC) recipient
.IP "-c \fIaddress\fP"
Specify a carbon-copy (CC) recipient
-.IP "-d \fIlevel\fp"
+.IP "-d \fIlevel\fP"
If mutt was complied with +DEBUG log debugging output to ~/.muttdebug0.
\fILevel\fP can range from 1-5 and effects verbosity. A value of 2 is
recommended.